At 507 years old, Ming the Mollusk was the world's oldest living creature, that is, until scientists accidentally killed it.

Ming, named after the party that was ruling China when it came into existence, was living at the bottom of the North Atlantic near Iceland when scientists scooped it up in 2006, according to The Telegraph.

Not knowing how old the ocean quahog was, scientists from Bangor University put it in a freezer before studying it, which ultimately ended up killing the specimen. The clam broke the Guinness record in 2007 when scientists announced it was 405 years old, but now those same scientists say they got it wrong and that Ming was actually 507 years old at the time of its death.

Researchers counted layers on Ming's shell to determine its age, but because it was so old, many of the layers were condensed together causing the scientists to miscount them.

“We got it wrong the first time and maybe we were a bit hasty publishing our findings back then. But we are absolutely certain that we’ve got the right age now,” Dr. Paul Butler from the University’s School of Ocean Sciences told The Telegraph.